Patent US5237412A successfully refreshed from Google Patents.
US5237412A
Expired / Lapsed
US
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Signal recording and/or reproducing apparatus
Assignee: Sony Corp
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Filing: 1992-01-29
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Granted: 1993-08-17
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Expires: 2012-01-29
Abstract
Abstract A signal recording and/or reproducing apparatus can record and/or reproduce a character information, which could not be sufficiently demodulated conventionally, together with a video signal, by deriving a program information signal S9 from a character signal S8 transmitted as multiplexed with the video signal S1, outputting it to a control circuit 12, coding or decoding only character information S5 corresponding to a program information selected by a user at a clock lower than a broadcasting signal, re-inserting it into the video signal S4 and recording and/or reproducing the combined signals.
Inventors
- 👤 Yasuhisa Nakajima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:07
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/08; H04N7/087; H04N7/088; H04N7/0882; H04N5/00; H04N5/76; H04N5/91; H04N5/92; H04N5/9201; H04N5/9206; H04N5/9207
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
215 words
A signal recording and/or reproducing apparatus for recording, on a recording medium, character information multiplexed with a television broadcasting signal or reproducing it from the recording medium, said recording and/or reproducing apparatus characterized by comprising: a character information separating circuit for separating the character information from the television broadcasting signal; decoding means for decoding the character information and separating program information data from the character information; an on-screen display; control means receiving said program information data and feeding said data to said on-screen display for display to a user for selecting a desired character information based on the displayed program information data, said control means producing an information selecting signal corresponding to the selected desired character information; a recording and/or reproducing circuit for recording and/or reproducing the character information corresponding to the selected desired character information at a clock lower than a reference clock in response to a clock control signal from said control means; and said recording and/or reproducing circuit including an encoder receiving said character information from said separating circuit and said information selecting signal from said control means, so that only the character information which corresponds to the selected character information is re-inserted into the television signal with its data rate being lowered and recorded on the recording medium or reproduced therefrom.
Claim 2
Dependent Claim
215 words
A signal recording and/or reproducing apparatus for recording, on a recording medium, character information multiplexed with a television broadcasting signal or reproducing it from the recording medium, said recording and/or reproducing apparatus characterized by comprising: a character information separating circuit for separating the character information from the television broadcasting signal; decoding means for decoding the character information and separating program information data from the character information; an on-screen display; control means receiving said program information data and feeding said data to said on-screen display for display to a user for selecting a desired character information based on the displayed program information data, said control means producing an information selecting signal corresponding to the selected desired character information; a recording and/or reproducing circuit for recording and/or reproducing the character information corresponding to the selected desired character information at a clock lower than a reference clock in response to a clock control signal from said control means; and said recording and/or reproducing circuit including an encoder receiving said character information from said separating circuit and said information selecting signal from said control means, so that only the character information which corresponds to the selected character information is re-inserted into the television signal with its data rate being lowered and recorded on the recording medium or reproduced therefrom.
Claim 3
Dependent Claim
49 words
The signal recording and/or reproducing apparatus according to claim 1, further comprising: a frequency dividing circuit responsive to said clock control signal from said control means for obtaining said clock lower than the reference clock by dividing the reference clock at a dividing ratio 3/7 times the reference clock.
References Cited (Backward Citations)
US4543616A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-08-16 | 1997-02-15 | 1997-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-08-16 | 2001-02-15 | 2001-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-08-16 | 2005-02-15 | 2005-08-17 | $7700.00 | Window Closed / Lapsed |